Car-brake.



No. 796,464. PATENTEDAUG. a, 1905.

o. J. SPBCHT & o. mxum.

GAR BRAKE.

APPLIoATIoN PILBD JU/Nn 24. 1904.

ym@ )hwg Wl TNESSES:

UNITED STATES PATENT cierren.

CHARLES J. SPECHT AND CHARLES R. KRUEGER, OF NEW YORK, N. Y.

CAR-BRAKE.

Specification of Letters llatent.

Patented Aug. 8, 1905.

Application filed J une 24, 1904. Serial No. 213,952.

T all whom 1l/1 nm/y/ concern:

Be it known that we, CHARLES J. SPECHT and CHARLES R. KRIIEGER, citizens of the United States, and residents of the city of New York, borough of Manhattan, in the county of New York and State of New York,

have invented a new and Improved Car-Brake, Y

of which the following is a full, clear, and eX- act description.

The invention relates to an electrical carbrake, and it is an improvement over the construction shown in our prior patent, No. 720,978, dated February 17, 1903.

It consists 'in the various features and combinations hereinafter described and more particularly claimed.

Reference is had to the accompanying drawings, which illustrate, as an example, one manner of embodying our inventive idea, and in which drawings like characters of reference indicate like parts lin the several views, and in which- Figure 1 is a sectional view of the brakeshoe, showing it in its operative relation with respect to the brake-beam and car-wheel. Fig. 2 is a rear elevation-of the brake-shoe, showing particularly the devices for hanging the same.

l indicates the brake-beam, to which is secured the saddle 11 of a two-part bracket 12, said bracket extending above and below the brake-beam and having at'its upper end a pivoted link or links 14, joined to the body of the brake-shoe by a pin 16, as shown.

The lower part of the bracket 12 is providedwith a slot 17, in which is loosely tit-ted a pin 18, carried transversely by the body 15 of the shoe. It will be seen, therefore, that the shoe is mounted to swing on the links 14 and to slide its pin 18 on the lower limb of the bracket 12. This sliding movement is limited by a screw 19, which works in a web 20 at the lower part of the bracket 12 and enables the screw to engage the shoe, as shown.

The brake-shoe comprises in addition to the body 15.a face or contact plate 21, of brass or the like, joined to the body 15 by a shell 22. Located in suitable openings formed in the face 21 are the pole-pieces 23 of, preferably, four electromagnets, said pole-pieces having undercut openings receiving the dovetail ends 25 of the magnet-cores 26. 27 indicates pins for holding the parts 23 and 25 engaged. Each magnet is formed with a number of independent windings 28. As here shown these windings are four for each magnet, and the winding of one magnet is connected in series' with the corresponding windings of the other magnets, forming according to the illustration here given four circuits for each brakeshoe. By energizing all of these circuits the full force of the magnetic brake-shoe will be brought into operation, and by energizing three, two, or one of such circuits the brakeshoe will be applied with diminished force.

Various changes in the form, proportions, and minor details of our invention may be resorted to at will without departing from the spirit and scope thereof. Hence we consider ourselves entitled to all such variations as may lie within the terms of our claims.

`Having thus described our invention, we

claim as new and desire to secure by Letters Patent- 1. The combination of a support, a bracket arranged thereon, an electromagnetic brakeshoe, a link supporting the shoe from the bracket, and supporting means establishing sliding connection between the shoe and the lower part of the bracket.

2. The combination of a support, a bracket arranged thereon, an electromagnetic brakeshoe, a link supporting the shoe from the bracket, and means establishing sliding connection between the shoe and the lower part of the bracket, said means including a pin on the shoe, the pin sliding in a slotin the bracket, and a screw for limiting such sliding movement.

3. The combination with a brake-beam, of a bracket having a saddle secured to the beam, a link hung from the upper part of the bracket, an electromagnetic brake-shoe attached to the link, and means for establishing a sliding connection between the lower part of the bracket and the brake-shoe.

4. The combination of a support, a link pivoted thereon, an electromagnetic brakeshoe pivoted to the link, and means for guiding the brake-shoe below the link, said means comprising devices for establishing a sliding support between the brake-shoe and the support.

5. The combination with a support, of a brake-shoe mounted thereon, and independent In testimony whereof we have signed our means coacting with the upper and lower pornames to this specification in the presence of tions of the brake shoe for sustaining its two subscribing witnesses.

weight from the support. CHARLES J' SPECHT.

6. The combination with a support, of a, y brake-shoe, a link connecting the upper por- CHARLES R KRUEGER tion ofthe brake-shoe with the support, and Witnesses: means .for sustaining the weight of the brake- LEWIS M. WHITE, shoe from the support at its lower portion. CHARLES JACOBS. 

